NEMO TANK INSTALLATION GUIDE INSTALLATION INSTRUCTIONS FOR THE NEMO TANK STAGE

Transcription

1 NEMO TANK INSTALLATION GUIDE INSTALLATION INSTRUCTIONS FOR THE NEMO TANK STAGE 1. Before undertaking the work 2. Receiving the materials 3. Handling and storage 4. Tank layout 5. Installing the tanks

2 STAGE 1 BEFORE UNDERTAKING THE WORK In case of discrepancy between the instructions contained in this guide and those contained in the plans and specifications, contact your Soleno representative. Contact your Soleno representative at least 48 hours before the work begins. The visit from your authorized Soleno representative is recommended after receipt of the materials on site or before the work begins. STAGE 2 RECEIVING THE MATERIALS Upon receipt of the materials, ensure that all the items required on the shop drawing are delivered and in good condition. Please notify immediately your Soleno representative in case of damage. STAGE 3 HANDLING AND STORAGE Ensure that all the lifting equipment used on the site is adapted to handle this load. Refer to the tank data sheet to find out its specific weight and select the appropriate equipment for its handling. Select a level solid surface to deposit the tank. Ensure the surface is free of rocks, debris or other objects that could damage the tank. When lifting the tank, comply with the angle shown below with the lifting straps or chains:

3 STAGE 3 HANDLING AND STORAGE (CONT D) Use the lifting rings to unload and install the tank. Use a guide rope to move the tank (as needed) about its lifting axis. When handling a tank equipped with plumbing accessories located on the bottom, take additional precautions not to damage them. When the tank is stored temporarily on the site before its installation, anchor it solidly in place to prevent it from rolling. Use ropes and wedges to stabilize the tank, as needed. STAGE 4 TANK LAYOUT Lay out the tanks according to the approved shop drawings and engineering plans. The dimensions specified in this section must be considered as minimal and must be increased, as needed, to adapt to the conditions of the land (anchor weights or slabs)

4 STAGE 4 TANK LAYOUT (CONT D) Provide for enough clearance between tanks to allow a dummy exit for the anchor weights. TANK SPACING Distance between tanks Distance between the tanks and the trench Stable soil conditions The widest of 450 mm (18 in) or double the width of the anchor weight The widest of 450 mm (18 in) or double the width of the anchor weight Unstable soil conditions* The widest of 450 mm (18 in) or double the width of the anchor weight 1200 mm (48 in) *Unstable soil: peat bog, sand pit, landfill site, saturated soil STAGE 5 INSTALLATION The excavation bottom must be stable and undisturbed. If water is present at the bottom of the excavation, keep it dry by pumping water out of the trench. Prepare a base 300 mm (12 in) thick, composed of clean gravel (naturally rounded) or clean stone, ranging in diameter between 3 mm (0.125 in) and 19 mm (0.75 in). The base must be smooth and level. (8 in) (12 in)

5 STAGE 5 INSTALLATION (CONT D) Deposit the tank on the base. Never install a tank directly on a concrete slab, on beams or cradles, or on the natural soil in place. Ensure the tank is perfectly horizontal and that the minimum distances are respected between the tanks and the excavation walls. If the tank requires anchoring, install the necessary hardware at this time, according to the approved shop drawings. Deposit the anchor beams at the bottom of the excavation, parallel to the tank. The beams must not be positioned directly on the tanks. Tie-down straps Exclusively use tie-down straps supplied by Soleno to anchor the tank. The positioning of the tie-down straps on each tank is identified by the arrow symbol or by highlights on the reinforcements. The straps must be used at each location identified for this purpose. Never position the straps between the tank reinforcements. Non-compliance with the appropriate positioning of the straps can damage the tank. Also distribute the tensile load by tightening all the tie-down straps uniformly until they are strongly tensioned without deforming the tank. Measure the inner diameter of the tank horizontally and vertically to ensure there is no deformation after tightening of the straps. The connection between the tie-down strap and the anchor point must be established by means of the following parts: tempered steel turnbuckle, looped cable or a combination of the two methods. If and only if the installation is done in saturated soil, partially fill the tank with water to maintain it in place during backfilling. The water level in the tank must never exceed the level of the excavation by more than 300 mm (12 in) until final backfilling.

6 STAGE 5 INSTALLATION (CONT D) Deposit uniformly around the tank a 300 mm (12 in) layer of backfill material of the same composition as the base. With the assistance of a long enough non-metal piece (for example, a 2 X 4 wooden plank), compact the fill material under the tank so that it is supported uniformly over its entire surface. Ensure that no area remains free. Avoid banging the tank during backfilling. RIGHT TECHNIQUE WRONG TECHNIQUE Continue backfilling in layers of 200 mm (8 in) and continue compacting the filling material under the sides of the tank and between the reinforcements to eliminate voids and ensure the necessary maintenance. Continue for each filling layer, at least up to mid-height of the tank. Compact each layer to 90% of M.P. Complete the backfilling to the top of the tank with the same filling material. After installing the piping, continue backfilling to 300 mm (12 in) above the tank.